T4000 online PH/ORP meterIndustrial online PH/ORP meter is a water quality online monitoring and control instrument with a microprocessor. This instrument is equipped with different types of pH electrodes or ORP electrodes, which are widely used in various industries such as power plants, petrochemicals, metallurgical electronics, mining, papermaking, biological fermentation engineering, pharmaceuticals, food and beverage, environmental water treatment, aquaculture, and modern agricultural planting. Continuously monitor and control the pH (acidity, alkalinity) value, ORP (oxidation-reduction potential) value, and temperature value of the aqueous solution.

Instrument features

● LCD color LCD screen display

● Intelligent menu operation

● Multiple automatic calibration functions

● Multiple signal output methods

● Manual and automatic temperature compensation

● Two sets of relay control switches

● High limit, low limit, hysteresis control

● Display pH/ORP, temperature, status, etc. on the same interface

● Password protection is provided to prevent non staff personnel from operating incorrectly

Technical Parameter

(1) Measurement range:

pH：0～14.00pH；

ORP：－2000～＋2000mV；

Temperature: 0-150.0 ℃;

(2) Resolution:

pH：0.01pH； ORP：1mV；

Temperature: 0.1 ℃;

(3) Basic error:

pH：±0.02pH； ORP：±2mV；

Temperature: ± 0.3 ℃;

(4) Stability:

pH:≤0.02pH/24h； ORP: ≤2mV/24h；

(5) Current output:

0/4-20mA (load resistance<750 Ω);

20-4mA (load resistance<750 Ω);

(6) Communication output: RS485 MODBUS RTU；

(7) Two sets of relay control contacts:

3A 250VAC，3A 30VDC；

(8) Power supply (optional):

85-265VAC ± 10%, 50 ± 1Hz, power ≤ 3W;

9-36VDC, power: ≤ 3W；

(9) Dimensions: 98 × 98 × 130mm;

(10) Installation methods: panel type, wall mounted type;

Panel opening size: 93 × 93mm;

(11) Protection level: IP65；

(12) Instrument weight: 0.6kg;

(13) Instrument working environment:

Environmental temperature:- 10～60℃；

Relative humidity: not exceeding 90%;

There is no strong magnetic field interference around except for the Earth's magnetic field.